Error During "Building DEX" (Unity 4.1.2f1)

I'm at my wits' end here. My game runs fine in the editor but Unity can't build the APK. At first I thought one of my plugins must be causing the issue but I included all of them in a test project and the test project builds fine.

The builder gets up to "Converting java.class to dex-format..." and then explodes. I have added the console output below. What the heck is causing this?

Error building Player: Exception: dx (invokation failed) ERROR: unknown error cmd:dx --dex --verbose --output=bin/classes.dex bin/classes.jar plugins stdout; processing archive bin/classes.jar... processing com/unity3d/player/a$1.class... processing com/unity3d/player/a$2.class... processing com/unity3d/player/a$a.class... processing com/unity3d/player/a.class... processing com/unity3d/player/b.class... processing com/unity3d/player/c.class... processing com/unity3d/player/d.class... processing com/unity3d/player/e$1.class... processing com/unity3d/player/e$2.class... processing com/unity3d/player/e.class... processing com/unity3d/player/f$a.class... processing com/unity3d/player/f.class... processing com/unity3d/player/g$1.class... processing com/unity3d/player/g$2.class... processing com/unity3d/player/g.class... processing com/unity3d/player/p.class... processing com/unity3d/player/h.class... processing com/unity3d/player/i.class... processing com/unity3d/player/j.class... processing com/unity3d/player/k$a.class... processing com/unity3d/player/k.class... processing com/unity3d/player/l.class... processing com/unity3d/player/m.class... processing com/unity3d/player/n.class... processing com/unity3d/player/o.class... processing com/unity3d/player/q.class... processing com/unity3d/player/r.class... processing com/unity3d/player/s.class... processing com/unity3d/player/t$1.class... processing com/unity3d/player/t.class... processing com/unity3d/player/u.class... processing com/unity3d/player/PlayerPrefs.class... processing com/unity3d/player/ReflectionHelper.class... processing com/unity3d/player/v.class... processing com/unity3d/player/w$1.class... processing com/unity3d/player/w$2.class... processing com/unity3d/player/w$3.class... processing com/unity3d/player/w$4.class... processing com/unity3d/player/w$5.class... processing com/unity3d/player/w$6.class... processing com/unity3d/player/w$7.class... processing com/unity3d/player/w.class... processing com/unity3d/player/x$1.class... processing com/unity3d/player/x$2.class... processing com/unity3d/player/x$3.class... processing com/unity3d/player/x.class... processing com/unity3d/player/y.class... processing com/unity3d/player/z.class... processing com/unity3d/player/aa$1.class... processing com/unity3d/player/aa.class... processing com/unity3d/player/ab.class... processing com/unity3d/player/UnityGL.class... processing com/unity3d/player/ac$a.class... processing com/unity3d/player/ac.class... processing com/unity3d/player/UnityJavaRunnable.class... processing com/unity3d/player/UnityPlayer$1.class... processing com/unity3d/player/UnityPlayer$2.class... processing com/unity3d/player/UnityPlayer$3.class... processing com/unity3d/player/UnityPlayer$4.class... processing com/unity3d/player/UnityPlayer$5.class... processing com/unity3d/player/UnityPlayer$6.class... processing com/unity3d/player/UnityPlayer$7.class... processing com/unity3d/player/UnityPlayer$8.class... processing com/unity3d/player/UnityPlayer$9.class... processing com/unity3d/player/UnityPlayer$10.class... processing com/unity3d/player/UnityPlayer$19$1.class... processing com/unity3d/player/UnityPlayer$19.class... processing com/unity3d/player/UnityPlayer$11.class... processing com/unity3d/player/UnityPlayer$12.class... processing com/unity3d/player/UnityPlayer$13.class... processing com/unity3d/player/UnityPlayer$14.class... processing com/unity3d/player/UnityPlayer$15.class... processing com/unity3d/player/UnityPlayer$16.class... processing com/unity3d/player/UnityPlayer$17.class... processing com/unity3d/player/UnityPlayer$18.class... processing com/unity3d/player/UnityPlayer$20.class... processing com/unity3d/player/UnityPlayer$21.class... processing com/unity3d/player/UnityPlayer$22.class... processing com/unity3d/player/UnityPlayer$23.class... processing com/unity3d/player/UnityPlayer$24.class... processing com/unity3d/player/UnityPlayer$25.class... processing com/unity3d/player/UnityPlayer$26.class... processing com/unity3d/player/UnityPlayer$27.class... processing com/unity3d/player/UnityPlayer$28.class... processing com/unity3d/player/UnityPlayer$29.class... processing com/unity3d/player/UnityPlayer.class... processing com/unity3d/player/UnityPlayerActivity.class... processing com/unity3d/player/UnityPlayerNativeActivity.class... processing com/unity3d/player/UnityPlayerProxyActivity.class... processing com/unity3d/player/ad.class... processing com/unity3d/player/ae$1.class... processing com/unity3d/player/ae.class... processing com/unity3d/player/WWW.class... processing org/fmod/FMODAudioDevice$a.class... processing org/fmod/FMODAudioDevice.class... processing org/fmod/a.class... processing archive plugins/./AdMobPlugin.jar... ignored resource META-INF/MANIFEST.MF processing com/prime31/AdMobPlugin$1.class... processing com/prime31/AdMobPlugin$2.class... processing com/prime31/AdMobPlugin$3.class... processing com/prime31/AdMobPlugin$4.class... processing com/prime31/AdMobPlugin$5.class... processing com/prime31/AdMobPlugin$6.class... processing com/prime31/AdMobPlugin$InterstitialListener.class... processing com/prime31/AdMobPlugin.class... processing com/prime31/AdMobPluginBase.class... processing archive plugins/./android-support-v4.jar... ignored resource META-INF/MANIFEST.MF processing android/support/v4/widget/CursorAdapter$1.class... processing android/support/v4/widget/CursorFilter$CursorFilterClient.class... processing android/support/v4/widget/SearchViewCompat$OnQueryTextListenerCompat.class.. . processing android/support/v4/widget/SearchViewCompat$SearchViewCompatHoneycombImpl.cla ss... processing android/support/v4/widget/CursorAdapter.class... processing android/support/v4/widget/SearchViewCompat$SearchViewCompatStubImpl.class... processing android/support/v4/widget/EdgeEffectCompat$BaseEdgeEffectImpl.class... processing android/support/v4/widget/CursorAdapter$ChangeObserver.class... processing android/support/v4/widget/EdgeEffectCompat.class... processing android/support/v4/widget/SimpleCursorAdapter.class... processing android/support/v4/widget/ResourceCursorAdapter.class... processing android/support/v4/widget/SearchViewCompat$SearchViewCompatImpl.class... processing android/support/v4/widget/EdgeEffectCompatIcs.class... processing android/support/v4/widget/SearchViewCompatHoneycomb$1.class... processing android/support/v4/widget/SimpleCursorAdapter$CursorToStringConverter.class. .. processing android/support/v4/widget/SimpleCursorAdapter$ViewBinder.class... processing android/support/v4/widget/SearchViewCompat$SearchViewCompatHoneycombImpl$1.c lass... processing android/support/v4/widget/SearchViewCompatHoneycomb$OnQueryTextListenerCompa tBridge.class... processing android/support/v4/widget/SearchViewCompatHoneycomb.class... processing android/support/v4/widget/EdgeEffectCompat$EdgeEffectIcsImpl.class... processing android/support/v4/widget/ScrollerCompatIcs.class... processing android/support/v4/widget/ScrollerCompat.class... processing android/support/v4/widget/CursorFilter.class... processing android/support/v4/widget/ScrollerCompat$ScrollerCompatImplIcs.class... processing android/support/v4/widget/SearchViewCompat.class... processing android/support/v4/widget/EdgeEffectCompat$EdgeEffectImpl.class... processing android/support/v4/widget/CursorAdapter$MyDataSetObserver.class... processing android/support/v4/content/CursorLoader.class... processing android/support/v4/content/AsyncTaskLoader.class... processing android/support/v4/content/ModernAsyncTask$4.class... processing android/support/v4/content/Loader.class... processing android/support/v4/content/ModernAsyncTask$1.class... processing android/support/v4/content/ModernAsyncTask$3.class... processing android/support/v4/content/Loader$OnLoadCompleteListener.class... processing android/support/v4/content/LocalBroadcastManager.class... processing android/support/v4/content/LocalBroadcastManager$ReceiverRecord.class... processing android/support/v4/content/pm/ActivityInfoCompat.class... processing android/support/v4/content/ModernAsyncTask$2.class... processing android/support/v4/content/AsyncTaskLoader$LoadTask.class... processing android/support/v4/content/LocalBroadcastManager$BroadcastRecord.class... processing android/support/v4/content/ModernAsyncTask.class... processing android/support/v4/content/IntentCompat.class... processing android/support/v4/content/ContextCompatHoneycomb.class... processing android/support/v4/content/ModernAsyncTask$WorkerRunnable.class... processing android/support/v4/content/LocalBroadcastManager$1.class... processing android/support/v4/content/ModernAsyncTask$Status.class... processing android/support/v4/content/ModernAsyncTask$InternalHandler.class... processing android/support/v4/content/ContextCompat.class... processing android/support/v4/content/Loader$ForceLoadContentObserver.class... processing android/support/v4/content/ModernAsyncTask$AsyncTaskResult.class... processing android/support/v4/content/ContextCompatJellybean.class... processing android/support/v4/database/DatabaseUtilsCompat.class... processing android/support/v4/util/SparseArrayCompat.class... processing android/support/v4/util/LongSparseArray.class... processing android/support/v4/util/DebugUtils.class... processing android/support/v4/util/TimeUtils.class... processing android/support/v4/util/LruCache.class... processing android/support/v4/util/LogWriter.class... processing android/support/v4/net/TrafficStatsCompat$BaseTrafficStatsCompatImpl$Sock etTags.class... processing android/support/v4/net/ConnectivityManagerCompat$BaseConnectivityManagerC ompatImpl.class... processing android/support/v4/net/ConnectivityManagerCompat$GingerbreadConnectivityM anagerCompatImpl.class... processing android/support/v4/net/ConnectivityManagerCompatJellyBean.class... processing android/support/v4/net/ConnectivityManagerCompat$HoneycombMR2Connectivity ManagerCompatImpl.class... processing android/support/v4/net/ConnectivityManagerCompat.class... processing android/support/v4/net/TrafficStatsCompatIcs.class... processing android/support/v4/net/TrafficStatsCompat$BaseTrafficStatsCompatImpl$1.cl ass... processing android/support/v4/net/TrafficStatsCompat$TrafficStatsCompatImpl.class... processing android/support/v4/net/TrafficStatsCompat$1.class... processing android/support/v4/net/ConnectivityManagerCompat$ConnectivityManagerCompa tImpl.class... processing android/support/v4/net/TrafficStatsCompat.class... processing android/support/v4/net/ConnectivityManagerCompat$JellyBeanConnectivityMan agerCompatImpl.class... processing android/support/v4/net/TrafficStatsCompat$IcsTrafficStatsCompatImpl.class ... processing android/support/v4/net/ConnectivityManagerCompatHoneycombMR2.class... processing android/support/v4/net/TrafficStatsCompat$BaseTrafficStatsCompatImpl.clas s... processing android/support/v4/net/ConnectivityManagerCompatGingerbread.class... processing android/support/v4/accessibilityservice/AccessibilityServiceInfoCompat.class... processing android/support/v4/accessibilityservice/AccessibilityServiceInfoCompatIcs.class... processing android/support/v4/accessibilityservice/AccessibilityServiceInfoCompat$AccessibilityServic eInfoIcsImpl.class... processing android/support/v4/accessibilityservice/AccessibilityServiceInfoCompat$AccessibilityServic eInfoStubImpl.class... processing android/support/v4/accessibilityservice/AccessibilityServiceInfoCompat$AccessibilityServic eInfoVersionImpl.class... processing android/support/v4/view/PagerTitleStrip$1.class... processing android/support/v4/view/PagerTabStrip$2.class... processing android/support/v4/view/MotionEventCompatEclair.class... processing android/support/v4/view/ViewCompat.class... processing android/support/v4/view/ViewGroupCompatIcs.class... processing android/support/v4/view/ViewConfigurationCompat$BaseViewConfigurationVersi onImpl.class... processing android/support/v4/view/ViewCompat$GBViewCompatImpl.class... processing android/support/v4/view/ViewCompat$JBViewCompatImpl.class... processing android/support/v4/view/ViewCompatJB.class... processing android/support/v4/view/ViewGroupCompat$ViewGroupCompatIcsImpl.class... processing android/support/v4/view/ViewCompatICS.class... processing android/support/v4/view/VelocityTrackerCompat$BaseVelocityTrackerVersionIm pl.class... processing android/support/v4/view/ViewConfigurationCompat$ViewConfigurationVersionIm pl.class... processing android/support/v4/view/VelocityTrackerCompat$HoneycombVelocityTrackerVers ionImpl.class... processing android/support/v4/view/PagerTitleStrip$PagerTitleStripImpl.class... processing android/support/v4/view/AccessibilityDelegateCompat.class... processing android/support/v4/view/PagerTitleStripIcs.class... processing android/support/v4/view/MotionEventCompat.class... processing android/support/v4/view/ViewPager$OnAdapterChangeListener.class... processing android/support/v4/view/KeyEventCompat$KeyEventVersionImpl.class... processing android/support/v4/view/AccessibilityDelegateCompat$AccessibilityDelegateI csImpl$1.class... processing android/support/v4/view/MenuItemCompat$MenuVersionImpl.class... processing android/support/v4/view/ViewPager$OnPageChangeListener.class... processing android/support/v4/view/ViewPager$PagerObserver.class... processing android/support/v4/view/KeyEventCompat.class... processing android/support/v4/view/AccessibilityDelegateCompat$AccessibilityDelegateJ ellyBeanImpl$1.class... processing android/support/v4/view/ViewPager$2.class... processing android/support/v4/view/PagerTitleStrip$PagerTitleStripImplIcs.class... processing android/support/v4/view/ViewPager$SavedState$1.class... processing android/support/v4/view/ViewConfigurationCompat.class... processing android/support/v4/view/ViewPager$Decor.class... processing android/support/v4/view/AccessibilityDelegateCompat$AccessibilityDelegateJ ellyBeanImpl.class... processing android/support/v4/view/MenuCompat.class... processing android/support/v4/view/PagerAdapter.class... processing android/support/v4/view/KeyEventCompatHoneycomb.class... processing android/support/v4/view/PagerTitleStripIcs$SingleLineAllCapsTransform.clas s... processing android/support/v4/view/AccessibilityDelegateCompatJellyBean$1.class... processing android/support/v4/view/ViewGroupCompat$ViewGroupCompatStubImpl.class... processing android/support/v4/view/ViewPager$SavedState.class... processing android/support/v4/view/KeyEventCompat$HoneycombKeyEventVersionImpl.class. .. processing android/support/v4/view/MotionEventCompat$BaseMotionEventVersionImpl.class ... processing android/support/v4/view/accessibility/AccessibilityManagerCompat$AccessibilityManagerStu bImpl.class... processing android/support/v4/view/accessibility/AccessibilityManagerCompat$AccessibilityManagerIcs Impl.class... processing android/support/v4/view/accessibility/AccessibilityEventCompatIcs.class... processing android/support/v4/view/accessibility/AccessibilityEventCompat$AccessibilityEventStubImp l.class... processing android/support/v4/view/accessibility/AccessibilityNodeInfoCompat.class... processing android/support/v4/view/accessibility/AccessibilityRecordCompat.class... processing android/support/v4/view/accessibility/AccessibilityRecordCompat$AccessibilityRecordIcsIm pl.class... processing android/support/v4/view/accessibility/AccessibilityManagerCompat.class... processing android/support/v4/view/accessibility/AccessibilityEventCompat$AccessibilityEventIcsImpl .class... processing android/support/v4/view/accessibility/AccessibilityNodeInfoCompat$AccessibilityNodeInfoJ ellybeanImpl.class... processing android/support/v4/view/accessibility/AccessibilityNodeProviderCompatJellyBean.class... processing android/support/v4/view/accessibility/AccessibilityNodeProviderCompat$AccessibilityNodeP roviderJellyBeanImpl.class... processing android/support/v4/view/accessibility/AccessibilityRecordCompatIcsMr1.class... processing android/support/v4/view/accessibility/AccessibilityNodeInfoCompat$AccessibilityNodeInfoS tubImpl.class... processing android/support/v4/view/accessibility/AccessibilityEventCompat$AccessibilityEventVersion Impl.class... processing android/support/v4/view/accessibility/AccessibilityManagerCompatIcs$1.class... processing android/support/v4/view/accessibility/AccessibilityNodeProviderCompatJellyBean$Accessibi lityNodeInfoBridge.class... processing android/support/v4/